21870784

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:393

約数の個数: 56

約数和(自身を含む): 47394368

約数和(自身を除く): 25523584

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 97, 104, 194, 208, 271, 388, 416, 542, 776, 832, 1084, 1261, 1552, 2168, 2522, 3104, 3523, 4336, 5044, 6208, 7046, 8672, 10088, 14092, 17344, 20176, 26287, 28184, 40352, 52574, 56368, 80704, 105148, 112736, 210296, 225472, 341731, 420592, 683462, 841184, 1366924, 1682368, 2733848, 5467696, 10935392, 21870784]

約数ペア:

[(1, 21870784), (2, 10935392), (4, 5467696), (8, 2733848), (13, 1682368), (16, 1366924), (26, 841184), (32, 683462), (52, 420592), (64, 341731), (97, 225472), (104, 210296), (194, 112736), (208, 105148), (271, 80704), (388, 56368), (416, 52574), (542, 40352), (776, 28184), (832, 26287), (1084, 20176), (1261, 17344), (1552, 14092), (2168, 10088), (2522, 8672), (3104, 7046), (3523, 6208), (4336, 5044)]